The precheck line tends to be bad in the AM, the one out of D. There is also a precheck line at the other end of D near E but hours of operation tend to be sporadic. The most I've stood in the main TSA Pre Check line is about 15-20 minutes. At certain times of the day the Security Entrance at E can be non existence. I generally will use E. You will however be required to take electronics out of your bag.